extern int io_input(struct iop *, time_t);
extern int io_inputwaiting(struct iop *);
extern int io_outputwaiting(struct iop *);
-extern int io_output(struct iop *, int);
-extern int io_output_if_queue_long(struct iop *, int);
+extern int io_output(struct iop *, time_t);
+extern int io_output_if_queue_long(struct iop *, time_t);
extern int io_peek(struct iop *, char *, int);
extern int io_read(struct iop *, char *, int);
extern int io_write(struct iop *, char *, int);